Graph the pair of parametric equations with the aid of a graphing calculator.x = cos 6t, y = sin 5t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: D
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Use the discriminant to determine the number and type of solutions for the given equation.8 + 4x2 = -6x
A. two imaginary solutions B. one (repeated) real rational solution C. two real irrational solutions D. two real rational solutions
Perform the indicated operations and simplify the result so there are no quotients.tan ?(cot ? - cos ?)
A. 0 B. 1 C. 1 - sin ? D. - sec2?
Solve the triangle. 
A. c = 8.95, A = 33.8°, B = 51.2° B. c = 9.95, A = 33.8°, B = 51.2° C. c = 8.95, A = 51.2°, B = 33.8° D. c = 7.95, A =51.2°, B = 33.8°
Solve the problem.A certain army is engaged in guerrilla warfare. It has two ways of getting supplies to its troops: it can send a convoy up the river road or it can send a convoy overland through the jungle. On a given day, the guerrillas can watch only one of the two roads. If the convoy goes along the river and the guerrillas are there, the convoy will have to turn back and 4 army soldiers will be lost. If the convoy goes overland and encounters the guerrillas, 
of the supplies will get through, but 5 army soldiers will be lost. Each day a supply convoy travels one of the roads, and if the guerrillas are watching the other road, the convoy gets through with no losses. What is the
optimal strategy for the army if it wants to maximize the amount of supplies it gets to its troops?
A. 
river, 
land
B. 
river, 
land
C. 
river, 
land
D. 0 river, 1 land